This is a copy of the
original 'Dispersalloy DFU' from the Caulk site, which
was withdrawn in early 1998 after attention was brought to the Caulk company's listing of
the contraindications to the use of
amalgams. All the text is unchanged. The graphics at the top of the original
document, however, were removed because the original *.gif files were not
saved, and some of the links back to Caulk at the bottom of the page have been
inactivated.

DIRECTIONS FOR USE

Dispersalloy®

Tablets and Powder

A dispensed phase admix amalgam, containing lathe-cut particles and silver/copper
eutectic spheres. Caution: U.S. Federal law restricts this device to sale by or on the
order of a dentist. For dental use only.

Composition

Powder (for 100g.)

Tablets

Silver

69.5 g

.270 g

Tin

17.7 g

.069 g

Copper

11.8 g

.046 g

Zinc

1.0 g

.004 g

Indication for use

Dispersalloy® should be used in stress bearing restorations
(Class 1 and 2), when other restorative materials or restoration techniques are not
indicated.

Prior to use, read the MSDS information and product instructions for this item.

Exposure to mercury may cause irritation to skin, eyes, respiratory tract and mucous
membrane. In individual cases, hypersensitivity reactions, allergies, or electrochemically
caused local reactions have been observed. Due to electrochemical processes, the lichen
planus of the mucosa may develop.

Mercury may also be a skin sensitizer, pulmonary sensitizer, nephrotoxin and
neurotoxin.

After placement or removal of amalgam restorations, there is a temporary increase of
the mercury concentration in the blood and urine.

Mercury expressed during condensation and unset amalgam may cause amalgamation or
galvanic effect if in contact with other metal restorations. If symptoms persist, the
amalgam should be replaced by a different material.

The number of amalgam restorations for one patient should be kept to a minimum.

Inhalation of mercury vapor by dental staff may be avoided by proper handling of the
amalgam, the use of masks, along with adequate ventilation.

Avoid contact with skin and wear safety glasses and gloves.

Store amalgam scrap in well sealed containers. Regulations for disposal must be
observed.DISPERSALLOY® CONTAINS ZINC; THE AMALGAM MADE THEREFROM MAY
SHOW EXCESSIVE EXPANSION IF MOISTURE IS INTRODUCED DURING MIXING, CONDENSING AND
COMPACTING.

Proportions

As with all alloys, the ratio mercury to alloy is important. A 1:1 mercury/alloy ratio
is recommended. When using either Dispersalloy ® Tablets or
Powder, we recommend using an automatic powder and mercury proportioner. It will
automatically and precisely dispense measured amounts of mercury and alloy. Refer to the
instructions provided by the proportioner manufacturer.

Step-By-Step Instructions

1. Trituration

Trituration speed and time are important factors in the handling properties of any
amalgam. Use Caulk reusable capsule and pestle for best results. The chart that follows
provides guidelines in determining amalgamator trituration time and speed setting for
Dispersalloy ® Powder and Tablets:

TRITURATION TIME RANGE - SECONDS

Tablets

Fast Set

Regular Set

Amalgamator

Setting

1 Tablet

2 Tablets

1 Tablet

2 Tablets

Caulk ProMix

Turtle

14±3

14±3

14±3

12±3

Caulk Vari-Mix II M

M2

14±3

14±3

14±3

12±3

Caulk Vari-Mix III

M2

14±3

14±3

14±3

12±3

ESPE CapMix

--

5±1

4±1

NR

NR

Wig-L-Bug DS80

High

13±2

13±2

13±2

9±2

Wig-L-Bug MSD

3800

16±3

16±3

14±3

12±3

ADEC

5

14±3

14±3

14±3

12±3

Silimat

4200

5±1

5±1

NR

NR

Silimat Plus

P-2 Slow

8±2

6±2

6±2

NR

Powder

Fast Set

Regular Set

Amalgamator

Setting

400mg

600mg

800mg

400mg

600mg

800mg

Caulk ProMix

Turtle

14±3

14±3

12±2

14±3

14±3

12±2

Caulk Vari-Mix II M

M2

14±3

14±3

12±2

14±3

14±3

12±2

Caulk Vari-Mix III

M2

14±3

14±3

12±2

14±3

14±3

12±2

ESPE CapMix

--

5±1

5±1

5±1

5±1

5±1

5±1

Wig-L-Bug DS80

High

14±3

14±3

12±2

14±3

14±3

12±2

Wig-L-Bug MSD

3800

14±3

14±3

12±2

14±3

14±3

12±2

ADEC

5

14±3

14±3

14±3

14±3

14±3

14±3

Silimat

4200

5±1

5±1

5±1

5±1

5±1

5±1

Silimat Plus

P-2 Slow

7±1

6±1

6±1

7±1

6±1

6±1

2. Condensation

Mercury need not be removed from the triturated amalgam prior to condensing. Condense
immediately after mix is completed. Pack angles and undercuts with small-faced plugger and
sufficient pressure to insure good adaptation. Build the restoration with additional
portions, until the cavity is slightly overfilled. Remove any mercury-rich amalgam from
the surface that may develop during condensation.

3. Carving / Burnishing

Carving can begin immediately after condensation. A sharp carver will give best
results. Burnishing setting amalgam is recommended to improve surface smoothness.

4. Polishing

The quality of the Dispersalloy® restoration will be enhanced
by polishing. The amalgam should be allowed to set 24 to 48 hours before polishing.

Suggestions for best results with Dispersalloy®

Manufacturer's variation in amalgamators and differences in local electrical current may
necessitate adjusting trituration time. The amalgam should be a coherent plastic mass that
may feel slightly warm. Overtrituration may result in a dry mix which feels hot. If this
occurs decrease trituration time. Undertrituration may result in a wet, or crumbly mix. If
this occurs, increase trituration time.

Properly triturated Dispersalloy® does not require mulling to
produce a smooth plasticity; however you may mull for 1-2 seconds after removing pestle to
collect amalgam into a single mass.

Before the matrix band is removed, the marginal ridge should be carved with an explorer.

When the matrix band is removed, the marginal ridge should be supported.

After removal of the matrix band, gingival margins may be smoothed with a curved
explorer.

The anatomy should be carved proceeding from the proximal margins towards the center of
the restoration.

Storage
Do not store under extreme conditions of temperature and humidity.

LOT number and Expiry date

Do not use after expiry date.

The lot number indicates important production information. The number should be quoted
in all correspondence which requires identification of the product.